Which statement is correct about the validate option when upgrading JUNOS software with the request system software add command?

Which statement is correct about the validate option when upgrading JUNOS software with the request system software add command?
A . It will check the compatibility of the configuration with the install package.
B . It will check if the device meets the storage requirement for the install package.
C . It will check the MD5 checksum of the install package.
D . It will check if the device meets the memory requirements for the install package.

Answer: A